Physics, 29.02.2020 05:25 cxttiemsp021
A 12-kg dog jumps up in the air to catch a ball. The dog's center of mass is normally 0.20 m above the ground, and he is 0.50 m long. The lowest he can get his center of mass is 0.10 m above the ground, and the highest he can get it before he can no longer push against the ground is 0.30m . If the maximum force the dog can exert on the ground in pushing off is 2.1 times the gravitational force Earth exerts on him, how high can he jump?
Answers: 3
Physics, 22.06.2019 18:30
Examples of states of consciousness include a. daydreaming b. dreaming during sleep c. hypnosis d. all of the above
Answers: 2
Physics, 22.06.2019 18:30
In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents
Answers: 1
Physics, 23.06.2019 04:20
The velocity of sound wave in air at 35°c is 353m/s, calculate the velocity of sound at 46°c
Answers: 1
Physics, 23.06.2019 14:30
Atruck going 15 kmôź°€h has a head-on collision with a small car going 30 kmôź°€h. which statement best describes the situation? (a) the truck has the greater change of momentum because it has the greater mass. (b) the car has the greater change of momentum because it has the greater speed. (c) neither the car nor the truck changes its momentum in the collision because momentum is conserved. (d) they both have the same change in magnitude of momentum because momentum is conserved. (e) none of the above is necessarily true. 2. a small boat coasts at constant speed under a bridge. a heavy sack of sand is dropped from the bridge onto the boat. the speed of the boat (a) increases. (b) decreases. (c) does not change. (d) without knowing the mass of the boat and the sand, we can’t tell.
Answers: 1
A 12-kg dog jumps up in the air to catch a ball. The dog's center of mass is normally 0.20 m above t...
Mathematics, 28.11.2021 19:20
Social Studies, 28.11.2021 19:20
Mathematics, 28.11.2021 19:20
Biology, 28.11.2021 19:20
Chemistry, 28.11.2021 19:20
History, 28.11.2021 19:20
Mathematics, 28.11.2021 19:20
Mathematics, 28.11.2021 19:20
French, 28.11.2021 19:20
Computers and Technology, 28.11.2021 19:20
Geography, 28.11.2021 19:20
Mathematics, 28.11.2021 19:20
Biology, 28.11.2021 19:20
Mathematics, 28.11.2021 19:20
Mathematics, 28.11.2021 19:20
Mathematics, 28.11.2021 19:20